1350 mL of gas at standard temperature and pressure is compressed to 734 ml. What is the new pressure of the gas? a) 0.55 atm
b) 1.84 atm
c) 5.58 atm
d) 11.8 atm

Determine the wavelength of the light absorbed when an electron in a hydrogen atom makes a transition from an orbital in the n=3 level to an orbital in the n=7 level.

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?